checksum Tools

SHA-256 Checksum Windows 10

SHA-256 Checksum Windows 10 computes a file's SHA-256 checksum locally by reading the complete file into browser memory and compares it to an expected value. Free and private.

Client-sideRuns entirely in your browser — your data never leaves your device.

Windows® and Windows 10® are trademarks of Microsoft Corporation. This independent browser tool is not affiliated with or endorsed by Microsoft, and trademarks belong to their respective owners.

Choose a file
Checksum

How to use SHA-256 Checksum Windows 10

  1. Choose the file whose bytes you want to checksum.
  2. Choose Algorithm; Expected checksum is an optional comparison value, not the source content.
  3. Wait for the selected file checksum to finish; changing the file or algorithm starts a new calculation.
  4. Use Copy to copy the displayed checksum, then compare it with a checksum from a trusted source.

About this tool

SHA-256 Checksum Windows 10 computes a checksum from the selected file bytes. The optional Expected checksum field supplies a comparison value; it is not a pasted-text hashing input.

The selected source is processed in your browser. Processing time and supported file sizes depend on the file and your device.

Frequently asked questions

What does SHA-256 Checksum Windows 10 do?

SHA-256 Checksum Windows 10 computes a checksum from the selected file bytes. The optional Expected checksum field supplies a comparison value; it is not a pasted-text hashing input.

Does SHA-256 Checksum Windows 10 cost anything?

No — SHA-256 Checksum Windows 10 is completely free, with no sign-up and no hidden limits.

Where is my data processed by SHA-256 Checksum Windows 10?

Entirely in your browser — SHA-256 Checksum Windows 10 keeps your data on your own machine and sends nothing anywhere.

Can I use SHA-256 Checksum Windows 10 without a connection?

Yes — after the first load SHA-256 Checksum Windows 10 runs entirely offline.

Related checksum tools